22100991240 has 64 divisors (see below), whose sum is σ = 66922666560. Its totient is φ = 5838513920.

The previous prime is 22100991239. The next prime is 22100991259. The reversal of 22100991240 is 4219900122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22100991198 and 22100991207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847791 + ... + 873470.

It is an arithmetic number, because the mean of its divisors is an integer number (1045666665).

Almost surely, 2^22100991240 is an apocalyptic number.

22100991240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100991240 is an abundant number, since it is smaller than the sum of its proper divisors (44821675320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22100991240 is a wasteful number, since it uses less digits than its factorization.

22100991240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721382 (or 1721378 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 22100991240 in words is "twenty-two billion, one hundred million, nine hundred ninety-one thousand, two hundred forty".